Tacke, JörgWolf, AndreasGrimm, RüdigerKeller, Hubert B.Rannenberg, Kai2019-10-302019-10-3020033-88579-330-Xhttps://dl.gi.de/handle/20.500.12116/29591The increasing pressure for network accessible information and business applications demands secure, interoperable, cost efficient and user self-service authentication procedures. This paper describes the authors' work on 2-factor authentication for Web applications encompassing speech biometrics, and its relevance to security and cost effectiveness.enText/Conference Paper1617-5468